Air and water heating apparatus.



No. 737,562. PATENTED SEPT. 1, 1903. 1' l G. H. ATKINS.

AIR AND WATER HEATING APPARATUS.

APPLICATION rmzn APR. 29, 1902. no 11011111.. 2 snnnTs-snnm 1.

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No. 737,562. "PATENTED SEPT. 1,1903. 0. H. ATKINS. AIR AND WATER HEATINGAPPARATUS.

APPLICATION FILED APR. 29. 1902.

Patented September 1, 1903.

PATENT OFFICE.

CHARLES H. ATKINS, OF SPRINGFIELD, MASSACHUSETTS.

AIR AND WATER HEATING APPARATUS.

SPECIFICATION forming part of Letters Patent No. 737,562, datedSeptember 1, 1903.

Application filed April 29, 1902.

To aZZ whom it may concern:

Be it known that I, CHARLES H. ATKINS, a citizen of the United States ofAmerica, and a resident of Springfield, in the county of I-Iampden andState of Massachusetts, have invented certain new and usefulImprovements in Air and Water Heating Apparatus, of which the followingis a full, clear, and exact description.

This invention relates to a caloric transfer-that is, to an apparatusfor the purpose of utilizing to the fullest extent the heat contained inthe exhaust-steam from a steam-engine or other source.

The object of the invention is to provide an improved means for heatingthe feed-water for a steam-boiler by means of the exhauststeam from asteam-engine and also to condense the exhaust-steam and mix the water ofcondensation with the heated feed-water.

A further object of the invention is to provide, in combination with theabove, means for heating a current of air that can be utilized forheating rooms of a building or for any other purpose for which hot airis desirable.

With these objects in View and others my invention comprises thearrangement and construction of parts used separately or in combination,substantially as hereinafter described and then particularly pointed outin the claims.

In the accompanying drawings, representing an apparatus embodying myinvention in my preferred form, Figure 1 represents a partial verticalsection on the line 1 l of Fig. 2. Fig. 2 represents an end elevationwith the hood removed.

Referring now to the views, in which the characters of referenceindicate the same parts, A is a suitable cylindrical receptacle, havingend portions B and O and being mounted on supports D and E. One end ofthe receptacle has a hood a and the other end a hood a The end portions13 and G of the receptacle are connected by a plurality of tubes at,which afford communication between the hoods. Air is forced into thehood a, passes through the tubes 6, and emerges through the hood (4 or,if preferred, its course may be the reverse. If desired, these tubes Z)may contain strips (Z, spirally ar- Serial No. 105.214. (No model.)

' ranged for the purpose of imparting a whirling motion to the currentof air. The exhaust-steam enters the receptacle A at an inlet f, havinga chamber g, in. which may be placed an oil-separator for removing theoil that is mixed with the steam in the cylinder of the engine. The pipeu is a blow-off when it is desired to empty or clear out the receptacle.The feed-water enters the receptacle by the pipe h, that is intermediateof two partitions t' and j. The partition j has recesses 7' as shown inFig.2, so that when the water rises to this height and before it couldoverflow at the top of the left-hand partition iit will overflow intothe lower part of the right-hand end of the receptacle and pass throughan aperture or into a tank or vessel n. In said tank is a balls,pertaining to which are ball-operated levers s s s and connections tocontrol a valve 25, which in turn controls the operation of asuction-pump, so that when the heated water in the receptacle n becomesquantitatively sufficient it is pumped away to the boiler or elsewherefor utilization as desired, it being understood that the outlet-pipe nof the receptacle n has connection, as the suc tion-pipe thereof, with asteam-pump, the steam-supply pipe t of which is controlled by theautomatically-operated valve t. A suitable gage-glass w indicates theamount of water in the vessel 11. A number of tubes extend from thepartition 2' to the partition j and also project slightly beyond thelatter partition, which tubes surround the tubes 6 at this portion ofthe receptacle. There is thus provided an annular space 1) between theinteriorof the tubes 7.: and the adjacent tubes b, that is accessible tothe steam in the receptacle A. The steam in this space serves the doublepurpose of imparting its heat to the current of air passing throughthese tubes 1) and also imparting heat to the water that surrounds thetubes 7; in the trough formed by the partitions 'i and j and theadjacent bottom portion of the receptacle A, and it will be seen,further, that the feed-water in this trough besides being heated bysteam in the annular spaces 19 will also be heated by the steam incontact with its upper surface. As the waterin the trough reaches thenotched portion 7' of the partition j, it will flow through the notchesand upon the outside of the protacle, and separated from the ends.thereof;

a plurality of tubes extending between said partitions, each of saidlatter tubes having one of the said former tubes passingthereth'rough,with an annular space therebetween an inlet for steam intothe receptacle; an inlet for feed-water into the lower portion of thereceptacle; and an outlet for the water between one of said partitionsand the adjacent end wall of the receptacle.

2. In a feed-water heater, the combination of a receptacle; apluralityofhorizontal tubes connecting the end portions of the receptacle; apartition in the lower portion of the receptacle adjacent each end; aplurality of tubes extending between said partitions, each of saidlatter tubes having one of the said former tubes passing therethrough,with an annular space therebetween; an inlet for steam into thereceptacle; an inlet for feed-water into the receptacle; and an outletfor the water between one of said partitions and the adjacent end of thereceptacle; and an apertured .hood at each end of the receptacle.

3. In a feed-water heater, the combination of a receptacle; a pluralityofhorizontal endwise-open air-tubes connecting the end portions of thereceptacle; a partition in the lower portion of the receptacle adjacenteach end; a plurality of tubes extending between the partitions, each ofthe latter tubes having one of said former tubes passing therethrough,with an annular space therebetween; an inlet for steam into thereceptacle; an inlet for feed-water into the receptacle at its lowerpart between said partitions; and an outlet for water between one ofsaid partitions and the adjacent end of the receptacle.

4. In a feed-water heater, the combination of a receptacle; apluralityof horizontal tubes connecting the end portions of the receptacle;

a partition in the lower portion of the receptacle adjacent each end,one of the partitions having notches below the level of the top of theother partition; a plurality of tubes extending between the partitions,each having one of said former tubes passing therethrough, with anannular space therebetween; an inlet for feed-Water into the receptacleat its lower part between the partitions and adjacent the partition notnotched; an inlet for steam into the receptacle; and an outlet for thewater, located between said notched partition and the adjacent end ofthe receptacle.

5. In a feed-water heater, the combination of a receptacle; a pluralityof horizontal tubes connecting the end portionsof the receptaclo; apartition in the lower portion of the receptacle adjacent each end, oneof the partitions being adapted to permit overflow before the level ofthe top of the other partition is attained, a plurality of tubesextending between the partitions, each having one of said former tubespassing therethrough, with an annular space therebetween; an inlet forsteam into the receptacle; an inlet for feed-water into the receptacle;an outlet for the water, located between one said partition and theadjacent end of the receptacle; a tank into which said outlet leads, asteamsupply pipe for a suction-pump having a lever-operated Valve 25,and a suction-pipe for said pump connected with said tank; andballand-lever connections for automatically opening and closing the saidsteam-valve.

6. In a feed-water heater, the combination of a receptacle; a pluralityof horizontal tubes connecting the end portions of the receptacle; apartition in the lower portion of the receptacle adjacent each end; oneof the partitions having notches below the level of the top of the otherpartition; a plurality of tubes extending between the partitions, eachhaving one of said former tubes passing therethrough, with an annularspace therebetween; said surrounding tubes projecting beyond the saidnotched partition; an inlet for water into'the receptacle at its lowerpart between the partitions and adjacent the partition not notched; aninlet for steam into the receptacle; and an outlet for the water locatedbetween said notched partition and the adjacent end of the receptacle.

7. In an apparatus of the character described, a closed receptaclehaving a steaminlet suitably above its bottom, a trough in the lowerportion of said receptacle having the ends thereof at a distance fromthe ends of the receptacle, and one end of the trough constructed topermit an Outflow of water thereat before the level of the top of theother end is attained, a Water-inlet to said trough, a series ofendwise-open tubes extending from end to end of and through the endwalls of the receptacle, endwise-open tubes extending from end to end ofthe trough and passing through the end walls thereof, and an outlet forthe closed receptacle at its lower portion outside of the outflow end ofsaid trough. 7

8. In an apparatus of the character described, a closed receptaclehaving a steaminlet suitably above its bottom, a trough in the lowerportion of said receptacle having the endsthereof at a distance from theends of the receptacle,.and one end of the trough constructed to permitan outflow of water thereat before the level of the top of the other endis attained, a water-inlet to said trough,

passing through the end Walls thereof, and surrounding certain of thefirst-named tubes with a longitudinal steam-space between said tubes,and an outlet for the closed receptacle at its lower portion outside ofthe outflow end of said trough.

9. In an apparatus of the character described, a closed receptaclehaving a steaminlet suitably above its bottom, a subsidiary receptaclewithin the lower portion of said receptacle having the ends thereof at adistance from the ends of the main receptacle, and one end of the troughbeing constructed to permit an outflow of water thereat before the levelof the top of the other end is attained, a water-inlet to said trough, aseries of endwise-open tubes extending from end to end, and through theend walls of, the receptacle, endwise-open tubes extending from end toend of the trough and passing through the end walls thereof, said mainreceptacle having an outlet at its lower portion outside of the outflowend of said trough, a tank into which said outlet leads having thesuctionpipe of a pump connected therewith, and a lever-operating bolttherein, a valve controlling the steam for the suction-pump andconnections between said balllever and said steam-Valve, for thepurposes set forth.

10. In an air and. water heater, the combination of areceptacle; aplurality of substantially horizontal air-tubes extending through andbetween walls of the receptacle; partitions within the receptacle andseparated from the ends thereof, a plurality of substantially horizontalsteam-conducting tubes extending through and between said partitions,each of said latter tubes having one of the said air-tubes passingtherethrough, with an annular space therebetween an inlet for steamleading into the receptacle; an inlet for water leading into thereceptacle between said partitions, and an outlet for the water betweenone of said partitions and the adjacent end wall of the receptacle.

Signed by me at Springfield, Massachusetts, in the presence of twosubscribing witnesses.

, CHARLES H. ATKINS.

Witnesses:

WM. S. BnLLows, M. A. CAMPBELL.

